Kiln for burning bricks



(No Model.) 4 Y v G. D. WILGUS,

KILN POB, BURNING BRGKs, TILES, sw. No. 303,198. Patented Aug. 5, 1884,.

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,UNITED STATES PATENT KILN FOR BURNING BRICKS, TILES, SoC.

SPECIFICATION forming part of Letters Patent No. 303,198, dated August5, 1884.

Applicativi] ined May s. 1834. (No moan.)

To a/ZZ whom itmay concern:

Be it known that I, G. D. VILGUS, of Lexington, in the county of Fayetteand Stat-e of Kentucky, have invented certain new and usefulImprovements in Kilnsfor Burning Bricks, Tiles, Sie.; and I do herebydeclare the following to be afull, clear, and exact description of 'theinvention, such as will enable others skilled in the art to which itpertains to make and use it, reference being had to the accompanyingdrawing, which forms part of this specilication.

My invention relates to an improvement in kiins for burning bricks,tiles, die.; and it consists in the combination of the furnace, theair-chambers connected therewith, and the eyes which extend through thebrick, with the fresh-air fines which are placed between the furnaces,as will be more fully described hereinafter. y

The object of my invention is to provide a lriln for burning brick,tile, and other such articles, in which each furnace is connected withan air-chamber, and each chamber fed with air which has been heated to agreater or less degree, and thus insure perfect combustion, therebyobi-ai ning a greater heat from a less amount of fuel than can be donein kilns of the ordinary construction.

The accompanying drawing represents a horizontal section of a kilnembodying my invention.

F represents the furnaces, which are placed on opposite sides of thekiln, and which are separated from each other any desired distance bymeans of the'chambers H, through which the air passes to theair-chambers for the purpose of becoming heated. The inner end of eachfurnace is connected with an airchamber, A, which air-chambers may becnti rely separated from each other by mea-ns .of suitable perforatedpartitions, or all of them may be connected together, as may be seen t.rlhe products of combustion pass through the inner end of the furnacesdirectly into these air-chambers, where they are niet by a suitablequantity of fresh air, which passes through the chambers II, and becomesheated to a greater or less degree in its passage through. This heatedair mingles with the products of combustion and insures a more perfectcombustion and a greater heat than can be produced if the hot air werenot fed, as is here shown. Connected with each air-chamber A are asuitable number of eyes, I, which form the openings made through thebricks when packed in a kiln in the ordinary manner. Through the centerof the kiln extends a larger passage or eye, for the purpose of insuringan equal distribution of the heat through the kiln. The furnaces andair-chambers are only made high enough to give space for firing, in theusual manner, and are arched over with brick and covered with earth, soas to retain the heat. IIhe kiln may be made the usual height, or anyheight that may be preferred, and they are arched over with brick, andmade self-supporting, or provided with a sheetfiron roof, which iscovered with earth or ashes, so as to retain the heat. The smaller eyesI do not communicate with the cross cent-ral eye except through thesmall spaces usually left insetting brick in kilns for burning.

In order to regulate the distribution of the heat and cause it tobeequal throughout the kiln, sliding doors X may be used in -couuectionwith the central eye alone, or with all of the eyes leading from theair-chamber, as may be preferred. In' practice it will be found that thesliding door over the central eye will be sufficient. These doors willbe operated by means of a poker directly through the furnace, and willconsist of fire-stone or any similar material. 'Vhen the doors are movedso as to close any one of the eyes, the heat will be forced through theother two.

Having thus described my invention, I

1. The combination of the furnaces F, the

hot-air chambers II, provided with perform.

connect with the air-chambers, and the cross central eye, substantiallyas set forth.

In testimony whereof I afiix my signatu re in presence of two witnesses.

GARRARD'DAVIS WILGUS. Witnesses:

Davin B. DnUMnoNn, Mnninrrn It. Comun.

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